Answer:
1. 4.75
2. 4.25
Step-by-step explanation:
1. Private cost is a supplier's or producer's cost of providing goods and services without any external cost.
Private cost:
= Cost of imported oil + Cost of refining oil to gasoline + Cost of distributing and selling gasoline + Government tax
= 0.50 + 1 + 0.75 + 2.50
= 4.75
2. Social cost is private cost plus external cost.
Social cost:
= Cost of imported oil + Cost of refining oil to gasoline + Cost of distributing and selling gasoline + Cost of pollution from one liter of gasoline
= 0.5 + 1 + 0.75 + 2
= 4.25